664099010634 has 16 divisors (see below), whose sum is σ = 1359086347872. Its totient is φ = 216218282448.

The previous prime is 664099010623. The next prime is 664099010639. The reversal of 664099010634 is 436010990466.

664099010634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (664099010639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287013329 + ... + 1287013844.

It is an arithmetic number, because the mean of its divisors is an integer number (84942896742).

Almost surely, 2^664099010634 is an apocalyptic number.

664099010634 is an abundant number, since it is smaller than the sum of its proper divisors (694987337238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664099010634 is a wasteful number, since it uses less digits than its factorization.

664099010634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574027221.

The product of its (nonzero) digits is 839808, while the sum is 48.

The spelling of 664099010634 in words is "six hundred sixty-four billion, ninety-nine million, ten thousand, six hundred thirty-four".